Reactive Counterion Surfactant Catalysis of Hydroxamic Acid


Download Reactive Counterion Surfactant Catalysis of Hydroxamic Acid


Preview text

Western Michigan University
ScholarWorks at WMU

Master's Theses

Graduate College

8-1986
Reactive Counterion Surfactant Catalysis of Hydroxamic Acid Hydrolysis with Perfluorooctanoic Acid
Mohamed El-Sayed Ayoub

Follow this and additional works at: https://scholarworks.wmich.edu/masters_theses
Part of the Analytical Chemistry Commons
Recommended Citation Ayoub, Mohamed El-Sayed, "Reactive Counterion Surfactant Catalysis of Hydroxamic Acid Hydrolysis with Perfluorooctanoic Acid" (1986). Master's Theses. 1269. https://scholarworks.wmich.edu/masters_theses/1269
This Masters Thesis-Open Access is brought to you for free and open access by the Graduate College at ScholarWorks at WMU. It has been accepted for inclusion in Master's Theses by an authorized administrator of ScholarWorks at WMU. For more information, please contact [email protected]

REACTIVE COUNTERION SURFACTANT CATALYSIS OF HYDROXAMIC ACID HYDROLYSIS WITH PERFLUOROOCTANOIC ACID
by Mohamed El-Sayed Ayoub
A Thesis Submitted to the Faculty o f The Graduate College in p a rtia l fu lfillm e n t o f the requirements fo r the Degree o f Master o f A rts Department o f Chemistry
Western Michigan U n ive rsity Kalamazoo, Michigan August 1986
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

REACTIVE COUNTERION SURFACTANT CATALYSIS OF HYDROXAMIC ACID HYDROLYSIS WITH PERFLUOROOCTANOIC ACID Mohamed El-Sayed Ayoub, M.A. Western Michigan U n iv e rs ity , 1986
A m ic e lla r e ffe c t upon the rate o f hydrolysis o f hydroxamic acids in aqueous perfluorooctanoic acid has been demonstrated fo r hydroxamic acids w ith chain lengths o f s ix , e ig h t, and ten carbons. In th is system the counterion, hydrogen io n , is a ca ta lyst. Typical rate constant-surfactant concentration p ro file s fo r m ic e lla r c a ta ly s is were obtained. The re su lts fo r these hydrolyses are consistent w ith the pseudo-phase model fo r m ice lla r e ffe c ts .
In addition the Arrhenius a c tiv a tio n energies were determined fo r the reaction o f octanohydroxamic acid a t surfactant concentrations above and below the c r it ic a l m icelle concentration o f the su rfa cta n t. The a c tiv a tio n energy is lower fo r reaction in the m ice lla r solutions than i t is fo r the non-m icellar solutions. This also indicates the m ic e lla r e ffe c t upon the reaction ra te .
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

ACKNOWLEDGEMENTS I am very g ra te fu l to Professor Donald Berndt who guided and encouraged me during th is work and also in preparation of th is paper. I would also lik e to thank a ll the fa c u lty members in the Chemistry Department fo r th e ir helpful advice. I am certain th a t I enjoyed my stay here a t Western because o f th a t.
Mohamed El-Sayed Ayoub
ii
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

IMversity Microfilms
International

1.0
l.l

vi'tm, 2.5

lii £ 12.2 3.6

u

2.0

buUuu

1.8

1.25 1.4

MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS
STANDARD REFERENCE MATERIAL 1010a (ANSI and ISO TEST CHART No. 2)
_ ------ /J-
University Microfilms Inc.
300 N. Zeeb Road, Ann Arbor, MI 48106

s! • %i•■:r
Ar
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

INFORMATION TO USERS
This reproduction was made from a copy of a manuscript sent to us for publication and microfilm ing. While the most advanced technology has been used to pho­ tograph and reproduce this manuscript, the quality of the reproduction is heavily dependent upon the quality of the material submitted. Pages in any manuscript may have indistinct print. In all cases the best available copy has been filmed. The following explanation of techniques is provided to help clarify notations which may appear on this reproduction.
1. Manuscripts may not always be complete. When it is not possible to obtain missing pages, a note appears to indicate this.
2. When copyrighted materials are removed from the manuscript, a note ap­ pears to indicate this.
3. Oversize materials (maps, drawings, and charts) are photographed by sec­ tioning the original, beginning at the upper left hand comer and continu­ ing from left to right in equal sections w ith small overlaps. Each oversize page is also film ed as one exposure and is available, for an additional charge, as a standard 35m m slide or in black and white paper format.*
4. Most photographs reproduce acceptably on positive microfilm or micro­ fiche but lack clarity on xerographic copies made from the microfilm. For an additional charge, all photographs are available in black and white standard 35m m slide format. *
♦For more information about black and white slides or enlarged paper reproductions, please contact the Dissertations Customer Services Department.
T T A / f J Dissertation
U I V 1 1 Information Service
University Microfilms International A Bell & Howell Information Com pany 300 N. Zeeb Road, Ann Arbor, Michigan 48106
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

1328635

Ayoub, Mohamed El-Sayed

REACTIVE COUNTERION SURFACTANT CATALYSIS OF HYDROXAMIC ACID HYDROLYSIS WITH PERFLUOROOCTANOIC ACID

Western Michigan University
University Microfilms
International 300 N. Zeeb Road, Ann Arbor, Ml 48106

M.Sc.

1986

Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.

Preparing to load PDF file. please wait...

0 of 0
100%
Reactive Counterion Surfactant Catalysis of Hydroxamic Acid